Thomas Hwang, M.D.
NPI 1023033495 · Ophthalmology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Hwang, M.D. is a Ophthalmology Physician provider in San Francisco, CA (NPI 1023033495).
Provider details
- NPI number
- 1023033495
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- H88457 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 91 | 32 |
| Timolol Maleate | 60 | 17 |
| Prednisone | 55 | 16 |
| Brimonidine Tartrate | 49 | 20 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 33 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 32 | 25 |
| Tafluprost/Pfbrand: Tafluprost | 25 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2021-12-13
Frequently asked questions
- What is Thomas Hwang's NPI number?
- Thomas Hwang's National Provider Identifier (NPI) is 1023033495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Hwang's specialty?
- Thomas Hwang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Hwang located?
- Thomas Hwang's practice location on file with NPPES is 400 Parnassus Ave # 344, San Francisco, CA 94143-2202.
- What is Thomas Hwang's phone number?
- The practice phone number listed in the NPPES registry for Thomas Hwang is (415) 353-2142.
- Does Thomas Hwang accept Medicare?
- Thomas Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Hwang's NPI active?
- Yes — Thomas Hwang's NPI (1023033495) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.